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zaway trickery

daemon@ATHENA.MIT.EDU (James M. Kretchmar)
Sun Jun 11 19:58:35 2000

Message-Id: <200006112358.TAA03637@mission-control.mit.edu>
To: testers@MIT.EDU
Date: Sun, 11 Jun 2000 19:58:28 -0400
From: "James M. Kretchmar" <kretch@MIT.EDU>

This is vaguely amusing, but probably not a huge deal.  You can cause
anyone running zaway to send zaway messages to -c message -i <instance
of your choice>.

zaway subs to <"MESSAGE", "*", ZGetSender()> and replaces only the
sender when it responds.  Since it'll respond to unauthentic zephyrs
you just send an unauth message to <"MESSAGE", "bwah-ha-ha", "dupe">
with z_sender="".  dupe@ATHENA.MIT.EDU's zaway responds to -i
bwah-ha-ha with his zaway message.

See opuser's message to -i test on Jun 11.

kretch



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